package org.smile.day01;

public class Main {

    public static void main(String[] args) {
        Animal tom = new Human();
        Animal bird = new Bird();

        System.out.println(tom.skin);
        tom.say();
        System.out.println(bird.skin);

        Human smith = new Human();
        System.out.println(smith.skin);

        Animal kkk = new Animal();
        System.out.println(kkk.skin);


    }
}
